Ceramic composites derived from polysiloxane/Al/Nb by AFCOP process

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dc.contributor.authorSCHIAVON, M.A.pt_BR
dc.contributor.authorYOSHIDA, I.V.P.pt_BR
dc.contributor.authorBRESSIANI, J.C.pt_BR
dc.contributor.authorACCHAR, W.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 4thpt_BR
dc.date.accessioned2014-11-17T17:58:05Zpt_BR
dc.date.accessioned2014-11-18T17:56:44Zpt_BR
dc.date.accessioned2015-04-02T04:52:26Z
dc.date.available2014-11-17T17:58:05Zpt_BR
dc.date.available2014-11-18T17:56:44Zpt_BR
dc.date.available2015-04-02T04:52:26Z
dc.date.eventoNov. 19-21, 2003pt_BR
dc.description.abstractIn this work, ceramic matrix composites (CMC) were prepared by AFCOP process, using a polysiloxane network filled with metallic niobium and aluminum powders as active fillers. The liquid polysiloxane precursor was loaded with a suitable polymer/filler ratio with respect to stoichiometric Nb : C and Al : O molar ratios. Changing Al by a-Al203, which acted as inert filler, non-stoichiometric conditions were obtained. The mixtures were blended, uniaxially warm pressed, and pyrolysed in flowing argon at 800, 1000 and 1200 °C. Thermogravimetry was used to follow the weight changes during the pyrolysis process. X-ray diffraction was used to identify the formation of new crystalline phases, such as Al203, NbC, Nb2C and AI 3Nb in the composites. Sintered specimens were also characterized by SEM and EDS. The results have indicated a good potential of this system to obtain multiphasic composite material in the Al-Nb system at lower temperatures.
dc.event.siglaPTECH 2003pt_BR
dc.identifier.citationSCHIAVON, M.A.; YOSHIDA, I.V.P.; BRESSIANI, J.C.; ACCHAR, W. Ceramic composites derived from polysiloxane/Al/Nb by AFCOP process. In: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 4th, Nov. 19-21, 2003, Guaruja, SP. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/15548.
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/15548pt_BR
dc.local.eventoGuaruja, SPpt_BR
dc.rightsopenAccess
dc.sourcePublicado em: Materials Science Forum, v. 498/499, p. 375-380, 2005pt_BR
dc.subjectceramicspt_BR
dc.subjectmatrix materialspt_BR
dc.subjectcomposite materialspt_BR
dc.subjectpolymerspt_BR
dc.subjectpyrolysispt_BR
dc.titleCeramic composites derived from polysiloxane/Al/Nb by AFCOP processpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorJOSE CARLOS BRESSIANI
ipen.codigoautor1459
ipen.contributor.ipenauthorJOSE CARLOS BRESSIANI
ipen.date.recebimento05-01pt_BR
ipen.event.datapadronizada2003pt_BR
ipen.identifier.ipendoc10098pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationf9cbec71-8864-4175-998d-637777f90c2d
relation.isAuthorOfPublication.latestForDiscoveryf9cbec71-8864-4175-998d-637777f90c2d
sigepi.autor.atividadeBRESSIANI, J.C.:1459:34:Npt_BR
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